UROLOGY ENCYCLOPAEDIA

The laboratory examination of semen to check the quality and quantity of sperm. A complete semen analysis includes testing the pH, sperm concentration, motility, linearity, velocity (progression) and morphology. Sperm count is the number of sperm in the ejaculate (when given as the number of sperm per milliliter it is more accurately known as the sperm concentration or sperm density). Morphology involves assessing the shape of sperm and counting the percentage of normal shapes. Motility is the motion, such as the forward swimming motion of health sperm. \r\n

Sperm

The male reproductive cell that has measurable characteristics such as mobility, density, morphology and viability.

Stent

Stent is an artificial 'tube' inserted into a natural passage/conduit in the body to prevent, or counteract, a disease-induced, localized flow constriction. The term may also refer to a tube used to temporarily hold such a natural conduit open to allow access for surgery.

Surrogate mother

A woman who carries a pregnancy for an infertile couple. A traditional surrogate is artificially inseminated with a man's sperm (the man being the biological father of the child), and the couple adopts the baby at birth. A gestational carrier is a woman who carries a pregnancy achieved after the embryos of the biological parents are transferred into her uterus following IVF.